Paddle propeller



B. F. BADDELEY.

PADDLE PROPFLLER.

APPLICATION FILED JAN. 2 I920.

- Patented Sept. 12, 1922..

2 SHEETS -SHEET l.

ISVENTOR Benjamin F Badde/e Amen NRY' B. F. BADDELEY.

PADDLE PROPELLER.

APPLICM'ION FILED 1AN.2. 1920.

Patented Sept. 12,1922.

2 SHEETS-SHEET Z.

- INVENTOR Bezyamm Ffiaddeig BY MMWA Amour Patented Sept. 12, 1922.

UNITED srnrris Parent BENJAMIN F. BADDELE'Y, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF FORTY- NINE PER CENT TO J. OHARLEFS KING, OF SAN FRANCISCO, CALIFORNIA.

PADDLE PROPELLER.

Application filed January 2, 1920. Serial No. 348,822.

'2" 0 all to lwm it may concern Be it known that I, BENJAMIN F. BADDE- LEY, a citizen of the United States, residing in the city and county of San Francisco and State OfCalifornia, have invented new and useful Improvements in Paddle Propellers, of which the following is a specification.

This invention relates to a propeller of the paddle type, especially adapted for steamers navigating in shallow rivers, harbors and the like.

One of the objects of the present invention is to provide a propeller of the paddle type adapted for river steamers and the like, and especially to provide means for adjusting the dip of the paddles to permit maximum eiiiciency of the same whether the steamer is lightly or heavily loaded.

Another object of the invention is to provide a paddle propelling unitconsisting of four cranks and two paddles; two cranks for each paddle, and in conjunction therewith means for driving the cranks and paddles in unison and at constant speed.

Another object of the invention is to provide means for vertically adjusting the position of the paddles with relation to their respective cranks.

Further objects will hereinafter appear.

The invention consists of the parts and the construction, combination and arrangement of parts as hereinaftermore fully described and claimed, having reference to the accompanying drawings, in which Fig. 1 is a side elevation of a hull showing the rear end thereof and the position of the paddle propellers.

Fig. 2 is a similar view drawn in an enlarged scale.

Fig. 3 is a plan view of Fig. 2.

Referring to the drawings in detail, A indicates the stern end of a river steamer or the like, and B a rearwardly extending frame consisting of two pair of superimposed interspaced horizontally positioned timbers such as indicated at 2 and These timbers are suitably tied together as at 4 and braced. as at 5, and they are in this instance provided for a support for the paddle propellers indicated at 6 and 7. Supported on the timbers 2 are-journal members 8, and similarly supported and secured on the lower timbers 3 of the frame B are journal. members 9, the journals 8 and 9 on the opposite sides of the frame being aligned to support crank shafts 1 0 consistlng of webs 11 and crank pins 12. There are four crank shafts, two on the upper frame and-two on the lower frame. They are arranged in pairs and each'pair is adapted to support a paddle propeller such as shown at 6 or 7. The crank shafts 10 are provided with driving cranks 14L on their outer ends which are connected by driving links 15, said links being in turn driven by connectlng rods 16, one on each side of the frame which maybe actuated by a steam engine or driven from any other suitable source. The driving link 15 is extended at each end as at 17 toengage the pins 18 of the driving cranks 14. It can, therefore, be

seen that all cranks will be driven in unison and at uniform speed by. the connecting rods 16, and to insure a uniform drive it is obvious that the driving cranks lei-may be set at an angle of 90 with relation to each other, or otherwise positioned if desired.

As previously stated the crank shafts are positioned in pairs, the cranks of each pair being interspaced and superimposed shown in Figs. 1 and 2. Journalled on each pair of co-eperating cranks are journal boxes 19' and connecting said boxes are rods 20. This arrangement insures a uniform movement of each pair of crank shafts and a uniform spacing between the same. The journal boxes 19 are provided for the support of arms 21, which in turn support the paddle blades tl and 7. There are two arms arranged on each pair of aligned and superposed crank pins 12. The arms 531 are dis posed at opposits ends of the respective crank' pins and are connected and spaced apart by the blades 6 and 7 and cross braces of anysuitable character. The arms 21 are adapted to be raised and lowered with relation to the cranks and the journal boxes 19 and this is accomplished by hand Wheels 22 and screw rods. 23. There is one hand wheel and rod 23 for each arm 21. The arms 21 are arranged to straddle thejournal boxes 19 and are guided. thereby, each section .of the arm 21 being channel-shaped to embrace the opposite faces of the journal boxes.

They are raised and lowered with relation to the journal boxes by the screws and this is accomplished by connecting the upper ends of the arms by plates 24 which are threaded to receive the screw rods and adapted to function as nuts therefor, that is the .lower ends of the respective screw rods are connected with the upper ournal boXes 19 and are turnable with relation thereto. Turning movement imparted ,to, any screw rod bymeans of the attached hand wheels 22 will therefore lift or raise the connected arms 21 with relationtothe journal boxes and the dip of the blades 6 and 7 may accordingly be adjusted.

is of extreme importance as it often happens that river steamers are heavily loaded and at other times are navigated with comparai lit eigh The 11 1 .1 P TQP i thus raised or lowered with relation to the waterline and the paddles wouldaccording- 1y be raised and lowered, thus losing their maximum efficiency in .either instancev their position .wasfiXed. This is, how.ev,er obvlated n the presentinstance asthe addle blades may be yertically adjusted at any time sov that their -,'maximum work may be accomplished whether the ship heavily or lightly loadedl .For instance .with a fixed paddle, whether it be oflthe .stern ,wheel type, ,or the .type here shown,.eit h.er-too great or too smallla dip would result under certain conditions. This :would ,be ,exceerh ingly detrimental with the.present arrangementas with ,aheavyloadfthe blades would have a tendency. to backwater during. ,a portion of the stro e. and'therebymaterially decrease the eificiencyofthezsame.

In actualoperation witha paddle .propeller constructed as hereshown it ispossible to so adjust'the blades G and 7 ofthe paddles so; that they will just clear the water whenthey are being lifted out by the cranks.

Theyv will therefore clearthe water onthe return stroke and willenterthe water immediately when commencing. the driving stroke. Hence maximum efiiciency may be obtained under all conditions.

YWhile the structure here shown is more or less specific in. design, I wish, it understood that changes inform and, proportion may beresorted to within thescepefof the appended claims, similarly thatthe materials and finish of theseveral partsemployedmay nalled in the frame, each of said cranks comprising a pair of. ,widely separated crank webs connected by a long crank pin, a pair of interspaced vertically disposed arms'con-' necting the crank pins and journalled thereon, a paddle blade secured to the lower ends of the arms and connecting the arms, and a commonconnecting member for each end of the cranks to insure unitarymovementof the cranks, said connecting member comprislng a straight bar w th a ill-shaped head iormedon each end thereof and a connecting rod attached to the center portion ofsaid member,

2. In a paddle propelling mechanism of the character described four crank shafts arranged in pairs, and one crank of each pairbeing disposed above the.other,1and means for insuring unitary rotation of said cranks, said means comprising I a .bar having a T-shapedhead .on each end.ther,eof, a pivotal connection between ;the Relapse ends of the member and ,the respective cranks and a pivotal connection between-the connecting .rod and said member.

3. Aypaddle .propeller cemprising, a frame, a pair of superposed cranks ourv nailed in the frame, each of said cranks'com ;.prising a ,pair'of widely separated cra l l webs connected by a longcrank pin, apair of interspaced vertically disposed arms connecting. thev crank .pins and ournalled thereon, .a paddle blade ecured to j the lower ends of the arms and connecting the arms, and

means permitting lvertical adjustmentlof the ins. i j

paddle propeller comprising a pair of, superimposed; cranks, apan :of arms arms and blades with relation to the crank 1. 'supportedb and journalled nus cranks, paddle blade secured to the arms and @1 11,

nectingthe same, and means"; forraising, and

lowcringthe v arms, together with the blade, with relation to the cr -anks A paddle propeller pair of superimposed cranks, a pair .of arms supported by and journalledlonjthe cranks, a paddle, blade secured :to thefarms and con necting the same, means "for raising and with relation to the cranks, saidmeans conir00 compris ng ,105 lowering the arms,"together. withg the blade,

prising journal boxes on the cranks,"-a slid- 111g connect on between tl16. )l1l11ll b0XBS and the arms, and. a screw rod "associated -with each arm, said screw rods being con nec ted 'with the journal bones and adapted to rais'e and. lower tlie a'rms with relation thereto.

6. A paddle propeller .con'iprising "two pair of superimposed cranks, means for drivingisaid cranks in unison,.a pail',..0f a ms carriedby veach pair of cranks, a paddle blade forv each] pairv of arms and secured thereto, and means. forraising andlowering cured, thereto, with relationjto their respective cranks. Y

In testimony whereof I' have hereunto set h andin the presence of twosubscribing es es. I I j I I BENJAMIN-F ADDELEY. Witnesses; I K I j v I HENRY O. HUDSON;

.XVILIQIAM NEWMAN.

'120 the arms, together with the. paddle blade se-' 

